...And you would be absolutely correct! I was planning on posting the answer tomorrow (to give people time to wonder) but since you've solved the puzzle already:
Answer: So, I went for my run. I passed through the sections of the neighborhood I’ve been through before. I made a couple turns and headed north toward the three unique precincts. The houses looked well-kept but not extravagant. Option (c) is out. I saw nothing to suggest the presence of Italians so I am doubting Option (b). After some time, I saw a man with a beard and a strange-looking hat get out of a car and go into his house. I saw a few children on the street playing in very, very old-fashioned looking clothing. They looked a lot like the Orthodox Jews I see going into and out of the nearby school and synagogues. So, after taking a trip and seeing for myself, I think the answer is (d) Orthodox Jews.
This seems to indicate that the Jewish population has generally moved eastward first to Glenville, which is an area of Cleveland just south of Bratenahl and then to Cleveland Heights, and not limited to Orthodox Jews. There are also indications that the eastward progression has continued. The Jewish Federation of Cleveland just opened their new headquarters in Beachwood with the intent that it be accessible to the community.
If you go to
http://drawthelinemidwest.org/ohio/competition/Click on Go to District Builder, and click on Enter As A Guest, click on any plan, View Plan and then zoom to the area.
If you select Pan, and then Shift -Left Mouse Drag, you have a marquee zoom. Zoom close enough and it will show individual blocks. In the upper left under Set Map Layers, you can specify to display the Black VAP%. The area shows up as somewhat of an island on both sides of Mayfield, but not as white as the area just east of Case Western Reserve.
The slider in the upper right can be used to make an underlying street map visible.
To Torie, Case Western Reserve is just inside the Cleveland city limits to the west of Cleveland Heights.
